1384309 has 2 divisors, whose sum is σ = 1384310. Its totient is φ = 1384308.

The previous prime is 1384303. The next prime is 1384337. The reversal of 1384309 is 9034831.

It is an a-pointer prime, because the next prime (1384337) can be obtained adding 1384309 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 908209 + 476100 = 953^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384309 - 2⁹ = 1383797 is a prime.

It is a super-2 number, since 2×1384309² = 3832622814962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692154 + 692155.

It is an arithmetic number, because the mean of its divisors is an integer number (692155).

2^1384309 is an apocalyptic number.

It is an amenable number.

1384309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384309 is an equidigital number, since it uses as much as digits as its factorization.

1384309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1384309 is about 1176.5666151986. The cubic root of 1384309 is about 111.4493861589.

The spelling of 1384309 in words is "one million, three hundred eighty-four thousand, three hundred nine".